Art of dispensing grease



April 2, 1929. T. E. BAKER '-ART oF DIsPENsING GREASE Filed March' 21, 1927 muuu v Mm,

Patented pr. 2i, 1929.

UNIT-ED STATI-:s4^

PATENT a OFFICE.

TEEODORE EDWARD BAR-ER, OE Los ANGELES, CALIFORNIA, AssIeNoR, RY NEsNE ns- 'sIeNMENTs To ALEMITE MANUFACTURING CORPORATION, OE CHICAGO, ILLINOIS,

` A. CQRIE'ORATION 0F DELAWARE.

ART OF DIs'RENsING GREASE.

A Application filed March- 21, 1927. Serial No. 176,985.

This invention includes the method of and means for dispensing grease of different oonsistencies `'and an object( of the invention is to. dispense the two characters of grease by 5 a single charge of Acompressed air; and the invention broadly includes maintaining-two fluid bodies under pressure, the pressure upon. one of the bodies being effected by a com pressed fluid and the pressure upon the other body being applied by fluid pressure of the first body, and discharging, controlling andv stopping the discharge from the said bodies independently of each other, alternately or simultaneously.

In carrying out this'invention, I provide two containers each having avalved outlet and adapted to contain iiuid undery pressure;

one of said containers being in the form of a cylinder; a free piston inthe cylinder; an vinlet to said eylinderon one side of the piston anda valve controlled outlet from said cylin der on the other side of the piston; andmeans t0 apply fluid pressure lto the contents of the f first container, thereby to express the contents of said cntainerstoward the outlets or either of them when the same are open 'respectively; that is to say, in this invention the compressed air upon the contents of the first Y container` is vapplied through such contents and the free piston to force the contents out of the second container when the outlet from said container is open.

. I-Ieretofore greases, lubricants 'and other commercial liquids were handled and dispensed from separate and distinct containers for each grade or character of liquid and each c container was accompanied `with its individual pressure chamber, pressure gage and valve controlled intake for the pressure fluid and Y' 40 i with its carrying and transporting means.

In this invention I construct in 'a single apparatus a plurality of separate and distinct liquid dispensers'and a single pressure chamber, gage and intake therefor, which is common to the several dispensers, to the end that a single dispensingunit may selectively serve liquids of different characters..

According t former, or the methods in vogue, such jobs as, for examplethe lubrication of an. automobile, wherein a heavy oil, L or grease, is desired for gear lubrication and a lighter oil desired for 'the crank -case, the v Operator was required to charge separate containers with compressed air, and to separately carry,lor otherwise transport them to the automobile.

An objectof my invention is to provide a liquid dispensing apparatus constructed as a unit and which comprises distinct liquid containers, a controllable outlet for each container. and a single ressure means for the several containers, w ereby the control of the pressure means is facilitated and the transporting of and dispensing from the several containers is accomplished with a minimum of effort. L

yA further obj ect is toprovide a method of dispensing fluids which consists in separately confining two, or more, bodies offluid, and i in utilizing an internal pressure of one of thek bodiesin the delivery of the other body, or bodies.

A further Object is to provide a method of dispensing fluids which consists in confining two, or more, bodies of fluid in distinctpconf tainer-s separated by a movable container ele-l ment; in subjecting one of the containers to an internalv pressure and in transferring such pressure through said movable container elejected to relatively low temperature.

Other objects, advantages and features of I my invention may appear from ther accompanying drawing, the subjoined detailed description and-the appended claims.

The accompanying drawing illustrates the A invention. t v

p Figure 1,1s a vertical sectional elevationV of an apparatus constructed in accordance with my Invention.

Fig. 2 is a fragmentary elevation showing .the relative arrangement ofthe suspension means foi` the inner container, air intake and gage and the bale or handle for the outer container.

The container 1, which constitutes the body and head 3. For convenience to its portav vof t-he apparatus, is constructed as a sheet metal cylinder, or drum, having a bottom 2 bility, I prefer to provide a wheeled carriage and a handle or bale. The form of carriage shown comprises a body 4, shaped .to surround the container 1, as shown in Fig. 1 5? supports 5 projecting laterally therefrom and a wheel, or wheels 6 'whose axle 7 is mounted in said supports.

rIhe recited bale, by preference and as shown, comprises a bar 8-and arms 9, conkstruc'ted of a singlek length of metallic rod,

and of U shape', its arms` being secured to the container 1, adjacent its upper end as by means, not shown, such as rivets, or welding. At each end of each arm 9 of the bale there is formed a hook 10 serving as racks for a dispensing hose and dispensing valve hereinafter referred to.'

- vThe container 1 serves tohold abody A' of liquid, such as a relatively light oil, which only partially'lills the container, the remaining space .B being utilized as a pressure chamber, andrto this end there is provided in thev head 3, of they container a valved intake 11 for compressedair and a pressure gage.

`Adjacent the bottom of the `container is an outlet 12 for the liquid content of the container, to which is secured a section of hose 13, which carries at its free end a nozzle 14 having a iow control valve 15, which may be of anyrconventional construction.

4 The vhose and its dispensing valve, when of t e container 1, and to this end therefore I secureto the head 3, surrounding the-hole Y 17, a relativel heavy metallicfring 19 over and to which p screws 20, a cap or head .21, which includes a filling opening having a screw-plug 22 and a delivery spout 23 to which there-is attached a flexible `hose,',24 carrying at its free 'end a valve controlling dispensing nozzle 25.

The container 18 is of a length to extend a considerable depth into the. body of liquid A in the container 1 and is formed wit-h' an open bottom whereby the liquid'A may freely vmove in the lower end thereof. -Mounted the container 18. and -for free lengthwise movements therein is amovable`container element, preferably, and as shown, construct-r ed as a piston 26, which maybe of any con ventional construction providing liquid-tight mount and secure as by cap lit with .the inside face of the wall of the container.

In the open bottom of the container I pro- ,vide a stop for prevent-ing movement of the piston out of theopen end which stop is shown as a ring 27 ,having a down-turned vflange 28 and is removably and replaceably held in space by screws 29, extending throug the wall of the container. ContributingI to the free sliding movement of the piston I employ 'a piston guide, or aligner 30, which comprises a stem 3l suspended from the pis-` ton and a disc which engages the container wall to 'oneside of the piston, which functions to prevent canting of the piston proper.

In order to adapt the apparatus to the dis# pensing of liquids which are not free `flowing as by viscosity in low temperature, I provide a heater, which comprises apoeket, or cavity,

formed in the container 1 to receive a heat source-. v,By preference the pocket is constructed as a unit 32 formed as by casting,

and of cylindrical shape, its inner end being closed and its outer end open, and bears next its open end external screw threads 33, and spaced lugs v34 to receive a lever or bar to effect bodily rotation. Formed inthe side` wall of the fcnta-iner 1 adjacent its lower end is a hole 35 surrounding which is a rei'ny forcing ring 36, secured as by weldin `to the outer face of the container and whic bears internal threads for engagement with the recited threads of the pocket.v The heatgsource referred to is by preference an ordinary incandescent electric lamp r37, whose socket 38 is secured to a base plate 39 which plate is held, as by screws 40, at the outer open end of the pocket. An ordinary cord 41 and plug 42 provide for connecting the lamp to feed wires,'or source, not shown.

For the movement of the piston 26 to the bottom ofthecntainer 18, upon a Idispensing of its content,the liquid body C, I provide a rod, such as 43, which is inserted through the filling opening at the top of container, en-

gaged with the piston for itsv movement to Y restore the container to its full capacity" The operation of the apparatus isas follows: assuming the container 1 tobe par# tially filled as by the recited body A of liquid; the remaining space B therein to be charged with compressed air; the`container 18 hold- 'ing the body of liquidC,and the dispensing nozzles 14 and 25` closed. It is obvious that by reason of the movable element of the container 18, the piston 26, the internal pressure in the body A willbe directly communicated to the body C and that both separately contained bodies of'liquid may be expelled selectively or simultaneously by pressure from a single source. Thecontent-of the container |1, being directly expel/led by the compressed air and the content of the container 18 being expelled by the pressure of the content of the container 1.

A feature of invention is the construction and relative arrangement of means for holding a number of bodies of. liquid physica'lly separatedbut in -a manner `to balance, t

- the Qperably distinct valve-controlled outletsgadaptation for use'by -more than one operator and the maintenance of the several liquids in tion. e

Iclajimz- H f 1 In a liquid dispensing apparatus, a' container; a controllable outlet for a liquid concondition for dispensing' or ejec- 1 tent; means for' admitting air under pressure to the liquid content for' its expelling a second container in open communication with the liquid content of the first ,container; pmeans for'admittinga liquid content to vthe second container; a controllable outlet for the second container, and a piston in the second container serving to physically separate the liquid contents of the two containers and, acting to expel the content of the second con tainer by direct pressure of the content of the I 'first container, the controlled outlets being.

physically distinct, whereby t-he contents of the two containers'may be selectively or simultaneously operated to deliver either or' both liquid contents. y l

2L; In a liquid dispensing apparatus, a container constitting-the body of they apparatus .and 'having a filling opening at its upperend;

means-,for admlttlng compressed air tothe" container; a controllable outlet for the container'; a second container for extension through the filling opening of the iirst container and having its lower end open for comy munication with the interior of the first container; a filling opening for the second con`- tainer; acontrollable outlet for the second container, and a piston freely movable'within the secondcontalner, r j;

" -In testimony whereof, I have hereunto setmYhand at Los Angeles, California, this 16th day of lliarch,`1927. A r

THEoDoRE EDWARD;v BnKER. 

